Locking means for rotary members



' 1,637,524 Aug 2 1927 J., H. HARRIMAN Y |l 7 "anni".

Patented Aug. y2, 192.7;r

JAMES H. HARRIMAN, OF SAN FRANCISCCL'CALIFORNIA.

LOCKING yMEANS non ROTARY MEMBERS.

Application led May 24, 1926. Serial No. 111,174.

This invention relates to' means for lock-` ing rotary members,particularly'threaded rotary members,` against adjacent parts in, withor against which, they may be rotatable.

Briefly described, my invention consists 1n combining an angular surfaceWith rotary devices generally, such as a screw, nut or bolt principally,whereby a longitudinalmove-k ment of the device is prevented, tho in itsspecific construction the invention takes the form of a Wedge applied atthe juncture of the parts which it is desired to lock.

In the drawings hereto Fig. l shows in perspective one form of myinvention, Fig. 2 another form in plan, and Fig. 3 is a crosssection ota pair of plates with a bolt eX tending therethrough withfmy inventioninposition on the bolt. A

Briefly described the invention comprises af special washer used inconnection withr a bolt or nut, the Washer being'o tapered thickness orwedgel shape and preferably divided through its thickest portion, Aandmade ot spring metal. n

In the specific form shown washer is ring shaped with the thinnestp01.'- tion ot its wedge body at the point o the lead 'from numeral 9and the iwashen is thickest at the point of division and preferablyyoliset as shown, tho `the washer forms actually in use a plain wedge oitsubstantially unyielding thickness.

f In FigxQ the wedge shaped w'asherfis thin-r nest at the pointindicated by the numeral 8 and thickest atthe numeral `7 Wherey it isdivided, tho it is also here shown with parted ends overlappingslightly.

The term shown in Fig. 2, however, is not circular but its contourembraces a. bolt space y of triangular rounded end form so that it maybe placed over variousy size bolts as per n the dotted circles shownWithin the Washer so` that the smallest one will fit into thel smallerrounded end of the opening.

In yeither ca se the Wedge is placed over a bolt 1 .as shown at 5 inFig. 3 so that upon screwing down the nut 6 to clamp the plates 2 2 thenut will be tipped by Contact with the wedge washer to thereby bend thebolt` slightly and thus lockthe same against unlThe wedge being even andunyielding i forms a solid after compression of its offset free endsseat for the nut yet the split being 4at the thickest portion providessharp edges :1t-the point under greatest compression -for impinging themetal of nut and plate or work so that any tendency to unscrew isprevented, yet

should any slight unscrewing take place the washer being continuous atthe thinnest p 'follow up the in Fig. 1 the In vthe case added effect isinasmuch as the overlapping ends will tilt to thereby get a better gripagainst the opposing metal surfaces between is clamped. kI claim:

A washer p graduallyk tapering ythickness which the washer rovided witha solid body of and split through its thickest portion, and said Washerhaving an opening therethrough ot' a substantially triangular formrounded at oneof ythe inner c orners of the triangle.

JAMES H. HARRIMAN.

